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slide1

INTRODUCTION

The recommended biofertilizer for banana are Azospirillum /Azotobacter in combination with PSB. However, mycorrhizal inoculation also gives additional benefit for mobilizing nutrients. Biofertilizers are applied as sucker dip method as well as soil treatment.

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BIOFERTILIZER APPLICATION IN BANANA

BIOFERTILIZER RECOMMENDATION

AZOSPIRILLUM

AZOTOBACTER

PHOSPHATE SOLUBILIZER

MYCORRHIZA

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SUCKER TREATMENT

This method is recommended generally for treating the sets of sugarcane, cut pieces of potato

and the base of banana suckers

BANANA SUCKER

Mix 1 kg each of nitrogen and phosphatic biofertilizer packets in 40 - 50 litres of water.

Immerse banana suckers required for one acre in the suspension for 30 minutes.

Dry under shade for some time before planting.

Irrigate the field within 24 hours.

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SOIL TREATMENT

Mix 2 –3 kg each of the Azospirillum /Azotobacter and PSB culture packets with 100 kg of well decomposed cattle manure/ compost for one acre of land and Sprinkle water to the mixer

Keep the mixer overnight for curing

Broadcast into soil at the time of planting or at the time of irrigation

For long duration crop 20-30 packets of biofertilizer (200g) are mixed with 80-120 kg. Cattle manure or soil for one acre land

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Mycorrhizal Application in Banana

Apply mycorrhizal culture in the mango nursery @ 100 gm per sq.m. three centimeter below the soil

For out planting, apply 20 gm mycorrhizal culture per seedling into the planting pit and cover with soil

For existing plant, apply mycorrhizal culture @ 200 gm near the root zone along with other fertilizers

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LET US SUM UP

  • Azospirillum / Azotobacter in combination with PSB is the recommended biofertilizers for banana.
  • Mycorrhizal inoculation also gives additional benefit for mobilizing nutrients.
  • contd….
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contd….

  • Broadly sucker dip method and soil treatment methods are widely used for biofertilization of banana.
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ASSESSMENT

Q. Tick the correct word :

i)Azospirillum / Captan is the recommended biofertilizer for banana.

ii) The mycorrhiza can helps in nutrient mobilization / nutrient solubulisation in banana.

iii) Sucker dip method / sucker cut method is applied to inoculate banana suckers.

iv) Mycorrhizalbiofertilizer should be applied in case of nursery application @ 100 gm / m­2 3 cm below soil / above soil.

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ASSESSMENT

Model Answers :

i) Azospirillum

ii) Nutrient mobilization

iii) Sucker dip method

iv) Below soil

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REFERENCES

i) Advances in Microbiology – N. S. Subba Rao

ii) Biofertilizers in Agriculture – N. S. Subba Rao

iii) Bio-fertilizer and Organic Farming – NIIR Board

iv) Biofertilizers

(Potentialities and Problems) - S. P. Sen and P. Palit